Professional bevel edge chisel 6mm 1 4in roughneck 30 153, these roughneck professional bevel edge chisels have high quality, drop forged chrome vanadium blades for long life performance. The bevel edge blade has two cutting angles 25deg ground angle and a pre honed 30deg angle for immediate cutting. The chisels have contoured, comfortable handles for maximum control. These handles are made from impact resistant polypropylene with a heavy duty end cap for repeated striking. The blade tang runs through the handle for direct transfer of striking force to the cutting edge. The chisels are supplied with a blade guard for edge protection and user safety.this set of 3 chisels contains the following sizes 13mm 1 2in, 19mm 3 4in, and 25mm 1in. Roughneck 30 153 professional bevel edge chisel set, 3 piece